Cummins N14 Red Top HP Increase

Discussion in 'Trucks [ Eighteen Wheelers ]' started by ReneJRR, Apr 26, 2017.

  1. ReneJRR

    ReneJRR Bobtail Member

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    Jan 14, 2017
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    Quick question i have 99 volvo vnl with cummins N14 Red Top 435hp 1 previous owner told me he increase it to 470hp now my question is can i increase to 500-525hp also increase the torque without changing hard parts? Will i have any problem if i do it?

    He also told me he put a new heavy duty clutch about 2-3 years ago, transmition is a automatic eaton fuller semiautomatic with a pedal clutch

    Engine: Cummins N14 435hp 1
    S11949001

    Transmition: FULLER RTAO - 16710C-
    31009465
    Also Does anyone knows any good shop in Florida that are good with Cummins N14 to do this type of work or just any Truck shop can do this job, thanks in advance
     
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  3. colorado18spd

    colorado18spd Medium Load Member

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    Your CPL # tells you if you can uprate the engine.
     
  4. ReneJRR

    ReneJRR Bobtail Member

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    Jan 14, 2017
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    Where do i find my CPL#?
     
  5. boneebone

    boneebone Road Train Member

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    It should be on your Engine Tag which is located on the left side of your engine, riveted to the Air Compressor.
     
    ReneJRR Thanks this.
  6. ReneJRR

    ReneJRR Bobtail Member

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    Jan 14, 2017
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    I would look for it tomorrow Thanks!!
     
  7. xsetra

    xsetra Road Train Member

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    Aug 21, 2011
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    I have the same question.
    I have an n14. Rated at 465hp 1650 torque
    Cpl..2391
    Ein...11916033

    I'm going to in frame motor this year.
    I see ceramic pistons. Teflon something else. Coated exhaust . Bigger turbo.

    I'm not looking to race my truck.
    I'm comfortable running around 65. What can I do to help fuel economy.
    It's nice to pass when I want.
    What brand rebuilt kit.

    There really is a lot of options.
    Thanks for your help.
     
  8. AlBig

    AlBig Light Load Member

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    3 year's as I bumped my n14 to 525 and 1850. Better gas mileage faster up hills. Best engine I aver drove. 6.9 year around for 2017
     
    xsetra Thanks this.
  9. xsetra

    xsetra Road Train Member

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    Aug 21, 2011
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    You only had the ecm software updated to a higher the 525hp. Done by a dealer or Cummins.
    Thanks
     
  10. easytopleez33

    easytopleez33 Light Load Member

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    Jan 6, 2015
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    CPL Plate on an Ni4 is located on drivers side, on accessory drive housing riveted. Gives the CPL# and the Overhead specs. Valve lash settings for the Intake and Exhaust. Gives the HP rating at a certain RPM. Usually can upgrade HP with a new flash of the ECM, alot require hard parts. I had a 460 HP N14 Celect Plus, to upgrade to 525 required reflash and an injector upgrade. Injectors are pretty pricey!! I didn't do it because of the price of the injectors.
    You'll need the Serial Number off the CPL Plate also. Just call to cummins they can tell you what it will take, To upgrade
     
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